<div data-role="page">
    <div data-role="header">
        <a href="#" data-rel="back" class="ui-btn ui-icon-arrow-l ui-btn-icon-left ui-shadow">返回</a>
        <h1>文件md5</h1>
    </div>
    <div role="main" class="ui-content">
        <p>请查看一下调用示例</p>
        <div data-role="collapsible">
            <h1>计算文件md5</h1>
            <button  onclick="fileMd5()" class="ui-btn ui-btn-a">点击下载一个文件并计算文件md5</button>
            <div id="md5Value"></div>
        </div>
    </div>
</div>